TY - BOOK AU - Perdew Laura TI - Extinction: What Happened to the Dinosaurs, Mastodons, and Dodo Birds? With 25 Projects T2 - "Build it yourself" series SN - 9781619305595 AV - QE721 .E985 2017 PY - 2017/// CY - LaVergne PB - Nomad Press KW - Mass extinctions KW - Extinction (Biology) KW - Electronic Books N1 - Electronic book; 2; 2; b N2 - In Earth's 4.5-billion-year history, more than 5 billion species have gone extinct, some of them at the same time. How can 75-95 percent of species on Earth disappear at one time? What event could cause such a massive die off? These are the questions that scientists have asked for decades as they explore the causes of extinction. In Extinction: What Happened to the Dinosaurs, Mastodons, and Dodo Birds? readers ages 9 to 12 learn about the scientific detective work scientists perform to answer these questions and find the culprit behind mass extinctions UR - https://search.ebscohost.com/login.aspx?direct=true&scope=site&db=nlebk&db=nlabk&AN=1595394&site=eds-live&custid=s3260518 ER -